keychron_qmk_firmware/keyboards/keychron/common/wireless/lkbt51.c

868 lines
24 KiB
C

/* Copyright 2023 @ Keychron (https://www.keychron.com)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "quantum.h"
#include "lkbt51.h"
#include "wireless.h"
#include "wireless_event_type.h"
#include "battery.h"
#include "raw_hid.h"
#include "report_buffer.h"
#include "factory_test.h"
extern void factory_test_send(uint8_t* payload, uint8_t length);
# ifndef RAW_EPSIZE
# define RAW_EPSIZE 32
# endif
#ifndef SPI_SCK_PIN
# define SPI_SCK_PIN A5
#endif
#ifndef SPI_MISO_PIN
# define SPI_MISO_PIN A6
#endif
#ifndef SPI_MOSI_PIN
# define SPI_MOSI_PIN A7
#endif
#ifndef SPI_CLK_PAL_MODE
# define SPI_CLK_PAL_MODE 5
#endif
#ifndef SPI_MISO_PAL_MODE
# define SPI_MISO_PAL_MODE 5
#endif
#ifndef SPI_MOSI_PAL_MODE
# define SPI_MOSI_PAL_MODE 5
#endif
#ifndef LKBT51_INT_INPUT_PIN
# error "LKBT51_INT_INPUT_PIN is not defined"
#endif
#ifndef LKBT51_TX_RETRY_COUNT
# define LKBT51_TX_RETRY_COUNT 3
#endif
// clang-format off
enum {
/* HID Report */
LKBT51_CMD_SEND_KB = 0x11,
LKBT51_CMD_SEND_KB_NKRO = 0x12,
LKBT51_CMD_SEND_CONSUMER = 0x13,
LKBT51_CMD_SEND_SYSTEM = 0x14,
LKBT51_CMD_SEND_FN = 0x15, // Not used currently
LKBT51_CMD_SEND_MOUSE = 0x16,
LKBT51_CMD_SEND_BOOT_KB = 0x17,
/* Bluetooth connections */
LKBT51_CMD_PAIRING = 0x21,
LKBT51_CMD_CONNECT = 0x22,
LKBT51_CMD_DISCONNECT = 0x23,
LKBT51_CMD_SWITCH_HOST = 0x24,
LKBT51_CMD_READ_STATE_REG = 0x25,
/* Battery */
LKBT51_CMD_BATTERY_MANAGE = 0x31,
LKBT51_CMD_UPDATE_BAT_LVL = 0x32,
LKBT51_CMD_UPDATE_BAT_STATE = 0x33,
/* Set/get parameters */
LKBT51_CMD_GET_MODULE_INFO = 0x40,
LKBT51_CMD_SET_CONFIG = 0x41,
LKBT51_CMD_GET_CONFIG = 0x42,
LKBT51_CMD_SET_BDA = 0x43,
LKBT51_CMD_GET_BDA = 0x44,
LKBT51_CMD_SET_NAME = 0x45,
LKBT51_CMD_GET_NAME = 0x46,
LKBT51_CMD_WRTE_CSTM_DATA = 0x49,
/* DFU */
LKBT51_CMD_GET_DFU_VER = 0x60,
LKBT51_CMD_HAND_SHAKE_TOKEN = 0x61,
LKBT51_CMD_START_DFU = 0x62,
LKBT51_CMD_SEND_FW_DATA = 0x63,
LKBT51_CMD_VERIFY_CRC32 = 0x64,
LKBT51_CMD_SWITCH_FW = 0x65,
/* Factory test */
LKBT51_CMD_FACTORY_RESET = 0x71,
LKBT51_CMD_IO_TEST = 0x72,
LKBT51_CMD_RADIO_TEST = 0x73,
/* Event */
LKBT51_EVT_LKBT51_CMD_RECEIVED = 0xA1,
LKBT51_EVT_OTA_RSP = 0xA3,
LKBT51_CONNECTION_EVT_ACK = 0xA4,
};
enum {
LKBT51_EVT_ACK = 0xA1,
LKBT51_EVT_QUERY_RSP = 0xA2,
LKBT51_EVT_RESET = 0xB0,
LKBT51_EVT_LE_CONNECTION = 0xB1,
LKBT51_EVT_HOST_TYPE = 0xB2,
LKBT51_EVT_CONNECTION = 0xB3,
LKBT51_EVT_HID_EVENT = 0xB4,
LKBT51_EVT_BATTERY = 0xB5,
};
enum {
LKBT51_CONNECTED = 0x20,
LKBT51_DISCOVERABLE = 0x21,
LKBT51_RECONNECTING = 0x22,
LKBT51_DISCONNECTED = 0x23,
LKBT51_PINCODE_ENTRY = 0x24,
LKBT51_EXIT_PINCODE_ENTRY = 0x25,
LKBT51_SLEEP = 0x26
};
enum {
ACK_SUCCESS = 0x00,
ACK_CHECKSUM_ERROR,
ACK_FIFO_HALF_WARNING,
ACK_FIFO_FULL_ERROR,
};
enum{
LK_EVT_MSK_CONNECTION = 0x01 << 0,
LK_EVT_MSK_LED = 0x01 << 1,
LK_EVT_MSK_BATT = 0x01 << 2,
LK_EVT_MSK_RESET = 0x01 << 3,
LK_EVT_MSK_RPT_INTERVAL = 0x01 << 4,
LK_EVT_MSK_MD = 0x01 << 7,
};
// clang-format on
static uint8_t payload[PACKET_MAX_LEN];
static uint8_t reg_offset = 0xFF;
static uint8_t expect_len = 22;
static uint16_t connection_interval = 1;
static uint32_t wake_time;
// clang-format off
wt_func_t wireless_transport = {
lkbt51_init,
lkbt51_connect,
lkbt51_become_discoverable,
lkbt51_disconnect,
lkbt51_send_keyboard,
lkbt51_send_nkro,
lkbt51_send_consumer,
lkbt51_send_system,
lkbt51_send_mouse,
lkbt51_update_bat_lvl,
lkbt51_task
};
// clang-format on
/* Init SPI */
const SPIConfig spicfg = {
.circular = false,
.slave = false,
.data_cb = NULL,
.error_cb = NULL,
.ssport = PAL_PORT(BLUETOOTH_INT_OUTPUT_PIN),
.sspad = PAL_PAD(BLUETOOTH_INT_OUTPUT_PIN),
.cr1 = SPI_CR1_MSTR | SPI_CR1_BR_1 | SPI_CR1_BR_0,
.cr2 = 0U,
};
void lkbt51_init(bool wakeup_from_low_power_mode) {
#ifdef LKBT51_RESET_PIN
if (!wakeup_from_low_power_mode) {
setPinOutput(LKBT51_RESET_PIN);
writePinLow(LKBT51_RESET_PIN);
wait_ms(1);
writePinHigh(LKBT51_RESET_PIN);
}
#endif
#if (HAL_USE_SPI == TRUE)
if (WT_DRIVER.state == SPI_UNINIT) {
setPinOutput(SPI_SCK_PIN);
writePinHigh(SPI_SCK_PIN);
palSetLineMode(SPI_SCK_PIN, PAL_MODE_ALTERNATE(SPI_CLK_PAL_MODE));
palSetLineMode(SPI_MISO_PIN, PAL_MODE_ALTERNATE(SPI_MISO_PAL_MODE));
palSetLineMode(SPI_MOSI_PIN, PAL_MODE_ALTERNATE(SPI_MOSI_PAL_MODE));
if (wakeup_from_low_power_mode) {
spiInit();
return;
}
spiInit();
}
#endif
setPinOutput(BLUETOOTH_INT_OUTPUT_PIN);
writePinHigh(BLUETOOTH_INT_OUTPUT_PIN);
setPinInputHigh(LKBT51_INT_INPUT_PIN);
}
static inline void lkbt51_wake(void) {
if (timer_elapsed32(wake_time) > 3000) {
wake_time = timer_read32();
palWriteLine(BLUETOOTH_INT_OUTPUT_PIN, 0);
wait_ms(10);
palWriteLine(BLUETOOTH_INT_OUTPUT_PIN, 1);
wait_ms(300);
}
}
void lkbt51_send_protocol_ver(uint16_t ver) {
uint8_t pkt[PACKET_MAX_LEN] = {0};
memset(pkt, 0, PACKET_MAX_LEN);
uint8_t i = 0;
pkt[i++] = 0x84;
pkt[i++] = 0x7e;
pkt[i++] = 0x00;
pkt[i++] = 0x00;
pkt[i++] = 0xAA;
pkt[i++] = 0x54;
pkt[i++] = ver & 0xFF;
pkt[i++] = (ver >> 8) & 0xFF;
pkt[i++] = (uint8_t)(~0x54);
pkt[i++] = (uint8_t)(~0xAA);
#if HAL_USE_SPI
expect_len = 10;
spiStart(&WT_DRIVER, &spicfg);
spiSelect(&WT_DRIVER);
spiSend(&WT_DRIVER, i, pkt);
spiUnselectI(&WT_DRIVER);
spiStop(&WT_DRIVER);
#endif
}
void lkbt51_send_cmd(uint8_t* payload, uint8_t len, bool ack_enable, bool retry) {
static uint8_t sn = 0;
uint8_t i;
uint8_t pkt[PACKET_MAX_LEN] = {0};
memset(pkt, 0, PACKET_MAX_LEN);
if (!retry) ++sn;
if (sn == 0) ++sn;
uint16_t checksum = 0;
for (i = 0; i < len; i++)
checksum += payload[i];
i = 0;
pkt[i++] = 0x84;
pkt[i++] = 0x7e;
pkt[i++] = 0x00;
pkt[i++] = 0x00;
pkt[i++] = 0xAA;
pkt[i++] = ack_enable ? 0x56 : 0x55;
pkt[i++] = len + 2;
pkt[i++] = ~(len + 2) & 0xFF;
pkt[i++] = sn;
memcpy(pkt + i, payload, len);
i += len;
pkt[i++] = checksum & 0xFF;
pkt[i++] = (checksum >> 8) & 0xFF;
#if HAL_USE_SPI
if ((payload[0] & 0xF0) == 0x60)
expect_len = 64;
else
expect_len = 64;
spiStart(&WT_DRIVER, &spicfg);
spiSelect(&WT_DRIVER);
spiSend(&WT_DRIVER, i, pkt);
spiUnselectI(&WT_DRIVER);
spiStop(&WT_DRIVER);
#endif
}
void lkbt51_read(uint8_t* payload, uint8_t len) {
uint8_t i;
uint8_t pkt[PACKET_MAX_LEN] = {0};
memset(pkt, 0, PACKET_MAX_LEN);
i = 0;
pkt[i++] = 0x84;
pkt[i++] = 0x7f;
pkt[i++] = 0x00;
pkt[i++] = 0x80;
i += len;
#if HAL_USE_SPI
spiStart(&WT_DRIVER, &spicfg);
spiSelect(&WT_DRIVER);
spiExchange(&WT_DRIVER, i, pkt, payload);
spiUnselect(&WT_DRIVER);
spiStop(&WT_DRIVER);
#endif
}
void lkbt51_send_keyboard(uint8_t* report) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SEND_KB;
memcpy(payload + i, report, 8);
i += 8;
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_send_nkro(uint8_t* report) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SEND_KB_NKRO;
memcpy(payload + i, report, 20); // NKRO report lenght is limited to 20 bytes
i += 20;
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_send_consumer(uint16_t report) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SEND_CONSUMER;
payload[i++] = report & 0xFF;
payload[i++] = ((report) >> 8) & 0xFF;
i += 4; // QMK doesn't send multiple consumer reports, just skip 2nd and 3rd consumer reports
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_send_system(uint16_t report) {
uint8_t hid_usage = report & 0xFF;
if (hid_usage < 0x81 || hid_usage > 0x83) return;
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SEND_SYSTEM;
payload[i++] = 0x01 << (hid_usage - 0x81);
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_send_mouse(uint8_t* report) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SEND_MOUSE; // Cmd type
payload[i++] = report[1]; // Button
payload[i++] = report[2]; // X
payload[i++] = (report[2] & 0x80) ? 0xff : 0x00; // ckbt51 use 16bit report, set high byte
payload[i++] = report[3]; // Y
payload[i++] = (report[3] & 0x80) ? 0xff : 0x00; // ckbt51 use 16bit report, set high byte
payload[i++] = report[4]; // V wheel
payload[i++] = report[5]; // H wheel
lkbt51_send_cmd(payload, i, false, false);
}
/* Send ack to connection event, wireless module will retry 2 times if no ack received */
void lkbt51_send_conn_evt_ack(void) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CONNECTION_EVT_ACK;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_become_discoverable(uint8_t host_idx, void* param) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
pairing_param_t default_pairing_param = {0, 0, PAIRING_MODE_LESC_OR_SSP, BT_MODE_CLASSIC, 0, NULL};
if (param == NULL) {
param = &default_pairing_param;
}
pairing_param_t* p = (pairing_param_t*)param;
payload[i++] = LKBT51_CMD_PAIRING; // Cmd type
payload[i++] = host_idx; // Host Index
payload[i++] = p->timeout & 0xFF; // Timeout
payload[i++] = (p->timeout >> 8) & 0xFF;
payload[i++] = p->pairingMode;
payload[i++] = p->BRorLE; // BR/LE
payload[i++] = p->txPower; // LE TX POWER
if (p->leName) {
memcpy(&payload[i], p->leName, strlen(p->leName));
i += strlen(p->leName);
}
lkbt51_wake();
lkbt51_send_cmd(payload, i, true, false);
}
/* Timeout : 2 ~ 255 seconds */
void lkbt51_connect(uint8_t hostIndex, uint16_t timeout) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_CONNECT;
payload[i++] = hostIndex; // Host index
payload[i++] = timeout & 0xFF; // Timeout
payload[i++] = (timeout >> 8) & 0xFF;
lkbt51_wake();
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_disconnect(void) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_DISCONNECT;
payload[i++] = 0; // Sleep mode
spiSelect(&SPID1);
wait_ms(30);
// spiUnselect(&SPID1);
wait_ms(70);
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_switch_host(uint8_t hostIndex) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SWITCH_HOST;
payload[i++] = hostIndex;
lkbt51_send_cmd(payload, i, true, false);
}
void lkbt51_read_state_reg(uint8_t reg, uint8_t len) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_READ_STATE_REG;
payload[i++] = reg_offset = reg;
payload[i++] = len;
// TODO
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_update_bat_lvl(uint8_t bat_lvl) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_UPDATE_BAT_LVL;
payload[i++] = bat_lvl;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_update_bat_state(uint8_t bat_state) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_UPDATE_BAT_STATE;
payload[i++] = bat_state;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_get_info(module_info_t* info) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_GET_MODULE_INFO;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_set_param(module_param_t* param) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SET_CONFIG;
memcpy(payload + i, param, sizeof(module_param_t));
i += sizeof(module_param_t);
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_get_param(module_param_t* param) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_GET_CONFIG;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_set_local_name(const char* name) {
uint8_t i = 0;
uint8_t len = strlen(name);
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_SET_NAME;
memcpy(payload + i, name, len);
i += len;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_get_local_name(void) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_GET_NAME;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_factory_reset(uint8_t p2p4g_clr_msk) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_FACTORY_RESET;
payload[i++] = p2p4g_clr_msk;
lkbt51_wake();
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_int_pin_test(bool enable) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_IO_TEST;
payload[i++] = enable;
lkbt51_send_cmd(payload, i, false, false);
}
void lkbt51_radio_test(uint8_t channel) {
uint8_t i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_RADIO_TEST;
payload[i++] = channel;
payload[i++] = 0;
lkbt51_send_cmd(payload, i, false, false);
}
bool lkbt51_read_customize_data(uint8_t* data, uint8_t len) {
uint8_t i;
uint8_t buf[20] = {0};
i = 0;
buf[i++] = 0x84;
buf[i++] = 0x7a;
buf[i++] = 0x00;
buf[i++] = 0x80;
#if HAL_USE_SPI
spiStart(&WT_DRIVER, &spicfg);
spiSelect(&WT_DRIVER);
spiExchange(&WT_DRIVER, 20, buf, payload);
uint16_t state = buf[5] | (buf[6] << 8);
if (state == 0x9527) spiExchange(&WT_DRIVER, len, data, payload);
spiUnselect(&WT_DRIVER);
spiStop(&WT_DRIVER);
#endif
return true;
}
void lkbt51_write_customize_data(uint8_t* data, uint8_t len) {
uint8_t i;
uint8_t pkt[PACKET_MAX_LEN] = {0};
i = 0;
pkt[i++] = 0x84;
pkt[i++] = 0x7a;
pkt[i++] = 0x00;
pkt[i++] = 0x00;
#if HAL_USE_SPI
spiStart(&WT_DRIVER, &spicfg);
spiSelect(&WT_DRIVER);
spiSend(&WT_DRIVER, i, pkt);
spiSend(&WT_DRIVER, len, data);
spiUnselectI(&WT_DRIVER);
spiStop(&WT_DRIVER);
#endif
i = 0;
memset(payload, 0, PACKET_MAX_LEN);
payload[i++] = LKBT51_CMD_WRTE_CSTM_DATA;
lkbt51_send_cmd(payload, i, false, false);
}
#ifdef RAW_ENABLE
void lkbt51_dfu_tx(uint8_t rsp, uint8_t* data, uint8_t len, uint8_t sn) {
uint16_t checksum = 0;
uint8_t buf[RAW_EPSIZE] = {0};
uint8_t i = 0;
buf[i++] = 0x03;
buf[i++] = 0xAA;
buf[i++] = 0x57;
buf[i++] = len;
buf[i++] = ~len;
buf[i++] = sn;
buf[i++] = rsp;
memcpy(&buf[i], data, len);
i += len;
for (uint8_t k = 0; k < i; k++)
checksum += buf[i];
raw_hid_send(buf, RAW_EPSIZE);
if (len > 25) {
i = 0;
memset(buf, 0, RAW_EPSIZE);
buf[i++] = 0x03;
memcpy(&buf[i], data + 25, len - 25);
i = i + len - 25;
raw_hid_send(buf, RAW_EPSIZE);
}
}
#endif
void lkbt51_dfu_rx(uint8_t* data, uint8_t length) {
if (data[0] == 0xAA && (data[1] == 0x55 || data[1] == 0x56) && data[2] == (~data[3] & 0xFF)) {
uint16_t checksum = 0;
uint8_t payload_len = data[2];
/* Check payload_len validity */
if (payload_len > RAW_EPSIZE - PACKECT_HEADER_LEN) return;
uint8_t* payload = &data[PACKECT_HEADER_LEN];
for (uint8_t i = 0; i < payload_len - 2; i++) {
checksum += payload[i];
}
/* Verify checksum */
if ((checksum & 0xFF) != payload[payload_len - 2] || checksum >> 8 != payload[payload_len - 1]) return;
static uint8_t sn = 0;
bool retry = true;
if (sn != data[4]) {
sn = data[4];
retry = false;
}
if ((payload[0] & 0xF0) == 0x60) {
lkbt51_wake();
lkbt51_send_cmd(payload, payload_len - 2, data[1] == 0x56, retry);
}
}
}
static void ack_handler(uint8_t* data, uint8_t len) {
switch (data[1]) {
case LKBT51_CMD_SEND_KB:
case LKBT51_CMD_SEND_KB_NKRO:
case LKBT51_CMD_SEND_CONSUMER:
case LKBT51_CMD_SEND_SYSTEM:
case LKBT51_CMD_SEND_MOUSE:
switch (data[2]) {
case ACK_SUCCESS:
report_buffer_set_retry(0);
report_buffer_set_inverval(connection_interval);
break;
case ACK_FIFO_HALF_WARNING:
report_buffer_set_retry(0);
report_buffer_set_inverval(connection_interval + 5);
break;
case ACK_FIFO_FULL_ERROR:
report_buffer_set_inverval(connection_interval + 10);
break;
}
break;
default:
break;
}
}
static void query_rsp_handler(uint8_t* data, uint8_t len) {
if (data[2]) return;
switch (data[1]) {
case LKBT51_CMD_IO_TEST:
factory_test_send(data, len);
break;
default:
break;
}
}
static void lkbt51_event_handler(uint8_t evt_type, uint8_t* data, uint8_t len, uint8_t sn) {
wireless_event_t event = {0};
switch (evt_type) {
case LKBT51_EVT_ACK:
ack_handler(data, len);
break;
case LKBT51_EVT_RESET:
kc_printf("LKBT51_EVT_RESET\n");
event.evt_type = EVT_RESET;
event.params.reason = data[0];
break;
case LKBT51_EVT_LE_CONNECTION:
kc_printf("LKBT51_EVT_LE_CONNECTION\n");
break;
case LKBT51_EVT_HOST_TYPE:
kc_printf("LKBT51_EVT_HOST_TYPE\n");
break;
case LKBT51_EVT_HID_EVENT:
kc_printf("LKBT51_EVT_HID_EVENT\n");
event.evt_type = EVT_HID_INDICATOR;
event.params.led = data[0];
break;
case LKBT51_EVT_QUERY_RSP:
kc_printf("LKBT51_EVT_QUERY_RSP\n\r");
query_rsp_handler(data, len);
break;
case LKBT51_EVT_OTA_RSP:
#ifdef RAW_ENABLE
kc_printf("LKBT51_EVT_OTA_RSP\n");
lkbt51_dfu_tx(LKBT51_EVT_OTA_RSP, data, len, sn);
#endif
break;
default:
kc_printf("Unknown event!!!\n");
break;
}
if (event.evt_type) wireless_event_enqueue(event);
}
void lkbt51_task(void) {
#define VALID_DATA_START_INDEX 4
#define BUFFER_SIZE 64
static bool wait_for_new_pkt = true;
static uint8_t len = 0xff;
static uint8_t sn = 0;
if (readPin(LKBT51_INT_INPUT_PIN) == 0) {
uint8_t buf[BUFFER_SIZE] = {0};
lkbt51_read(buf, expect_len);
uint8_t* pbuf = buf + VALID_DATA_START_INDEX;
if (pbuf[0] == 0xAA && pbuf[1] == 0x54 && pbuf[4] == (uint8_t)(~0x54) && pbuf[5] == (uint8_t)(~0xAA)) {
uint16_t protol_ver = pbuf[3] << 8 | pbuf[2];
kc_printf("protol_ver: %x\n\r", protol_ver);
(void)protol_ver;
} else if (pbuf[0] == 0xAA) {
wireless_event_t event = {0};
uint8_t evt_mask = pbuf[1];
if (evt_mask & LK_EVT_MSK_RESET) {
event.evt_type = EVT_RESET;
event.params.reason = pbuf[2];
wireless_event_enqueue(event);
}
if (evt_mask & LK_EVT_MSK_CONNECTION) {
lkbt51_send_conn_evt_ack();
switch (pbuf[2]) {
case LKBT51_CONNECTED:
event.evt_type = EVT_CONNECTED;
break;
case LKBT51_DISCOVERABLE:
event.evt_type = EVT_DISCOVERABLE;
break;
case LKBT51_RECONNECTING:
event.evt_type = EVT_RECONNECTING;
break;
case LKBT51_DISCONNECTED:
event.evt_type = EVT_DISCONNECTED;
break;
case LKBT51_PINCODE_ENTRY:
event.evt_type = EVT_BT_PINCODE_ENTRY;
break;
case LKBT51_EXIT_PINCODE_ENTRY:
event.evt_type = EVT_EXIT_BT_PINCODE_ENTRY;
break;
case LKBT51_SLEEP:
event.evt_type = EVT_SLEEP;
break;
}
event.params.hostIndex = pbuf[3];
wireless_event_enqueue(event);
}
if (evt_mask & LK_EVT_MSK_LED) {
memset(&event, 0, sizeof(event));
event.evt_type = EVT_HID_INDICATOR;
event.params.led = pbuf[4];
wireless_event_enqueue(event);
}
if (evt_mask & LK_EVT_MSK_RPT_INTERVAL) {
uint32_t interval;
if (pbuf[8] & 0x80) {
interval = (pbuf[8] & 0x7F) * 1250;
} else {
interval = (pbuf[8] & 0x7F) * 125;
}
connection_interval = interval / 1000;
if (connection_interval > 7) connection_interval /= 3;
memset(&event, 0, sizeof(event));
event.evt_type = EVT_CONECTION_INTERVAL;
event.params.interval = connection_interval;
wireless_event_enqueue(event);
}
if (evt_mask & LK_EVT_MSK_BATT) {
battery_calculate_voltage(true, pbuf[6] << 8 | pbuf[5]);
}
}
pbuf = buf;
if (wait_for_new_pkt) {
for (uint8_t i = 10; i < BUFFER_SIZE - 5; i++) {
if (buf[i] == 0xAA && buf[i + 1] == 0x57 // Packet Head
&& (~buf[i + 2] & 0xFF) == buf[i + 3]) { // Check wheather len is valid
len = buf[i + 2];
sn = buf[i + 4];
pbuf = &buf[i + 5];
wait_for_new_pkt = false;
}
}
}
if (!wait_for_new_pkt && BUFFER_SIZE - 5 >= len) {
wait_for_new_pkt = true;
uint16_t checksum = 0;
for (int i = 0; i < len - 2; i++) {
checksum += pbuf[i];
}
if ((checksum & 0xff) == pbuf[len - 2] && ((checksum >> 8) & 0xff) == pbuf[len - 1]) {
lkbt51_event_handler(pbuf[0], pbuf + 1, len - 3, sn);
} else {
// TODO: Error handle
}
}
}
}